"Two Florida nuclear power plants in the path of Hurricane Irma are shutting down to brace for the Category 5 storm's devastating wind and rain.

Florida Power & Light announced on Thursday it will shut down the Turkey Point and St. Lucie nuclear plants ahead of Irma's expected arrival this weekend. The two facilities are Florida's only operating nuclear power plants. Both are on Florida's Atlantic Coast, which is bracing to get hit very hard by Irma's ferocious winds.

"This is an extremely dangerous storm," Rob Gould, chief communications officer at Florida Power & Light, told reporters.

Gould said the nuclear sites are among the strongest in the United States and are designed to withstand heavy wind and storm surge. Turkey Point's nuclear reactors are enclosed in six feet of steel-reinforced concrete and sit 20 feet above sea level, the Miami Herald reported. Nuclear plants also have significant redundancies that serve as back-ups to back-ups. "

Matt Egan and Cheri Mossburg report for CNN September 7, 2017. [2]